Consolidated Statements of Income - USD ($) shares in Thousands		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net Sales (Note 1)	[1]	$ 2,332,114,000	$ 2,180,274,000	$ 2,325,768,000
Cost of Sales		2,062,226,000	1,908,060,000	2,048,170,000
Gross Profit		269,888,000	272,214,000	277,598,000
Operating Expenses:
Selling (Note 1)		48,767,000	45,628,000	48,367,000
Administrative (Note 1)		90,789,000	98,277,000	93,202,000
Research, development and technical services (Note 1)		59,278,000	55,674,000	59,039,000
Deferred compensation expense (Note 12)		2,155,000	2,155,000	4,371,000
Total Operating expenses		200,989,000	201,734,000	204,979,000
Goodwill and other intangibles impairment (Note 4)		6,245,000		2,038,000
Business restructuring and assets impairment (Note 22)				11,968,000
Gain on sales of assets (Note 20)		15,895,000
Operating Income		78,549,000	70,480,000	58,613,000
Other Income (Expense):
Interest, net (Note 6)		(22,115,000)	(14,182,000)	(12,103,000)
Other, net (Note 8)		3,470,000	4,141,000	1,881,000
Nonoperating Income (Expense), Total		(18,645,000)	(10,041,000)	(10,222,000)
Income Before Provision for Income Taxes		59,904,000	60,439,000	48,391,000
Provision for Income Taxes (Note 9)		13,009,000	10,069,000	8,187,000
Net Income		$ 46,895,000	$ 50,370,000	$ 40,204,000
Net Income Per Common Share (Note 18):
Basic		$ 2.05	$ 2.21	$ 1.77
Diluted		$ 2.05	$ 2.2	$ 1.75
Shares Used to Compute Net Income Per Common Share (Note 18):
Basic		22,872	22,832	22,777
Diluted		22,890	22,931	22,946

[1] Net sales are attributed to countries based on the location of the Company legal entity making the sale.